IO-Link data memory
DSU100
9
7 Function
7.1 IO-Link
7.1.1 General information
This device has an IO-Link interface which enables direct access to process and diagnostic data. It is
also possible to set the parameters of the device while it is in operation. Operation of the device via
the IO-Link interface requires an IO-Link capable module (IO-Link master).
7.1.2 Device-specific information
With a PC, IO-Link software and an IO-Link adapter cable communication is possible when the system
is not in operation.
Necessary information about the
, process data structure, diagnostic information,
parameter addresses and the required hardware and software can be found at
7.1.3 Device-specific parameters
The parameters of the device are set using an IO-Link parameter setting program (for example ifm
moneo).
w
More information about the
at
.
7.1.3.1 Parameter "Auto-Read/Write Address"
(Index 1903, subindex 0)
In the operating modes "READ DATA AUTO" / "WRITE DATA AUTO", the device automatically reads /
writes a specified number of data bytes.
The parameter defines the address in the memory area which is accessed during the read/write
operation. The address is indicated in bytes from the start of the memory area.
The data is processed as a data word (2 bytes).
u
Use data word as format for the address.
u
Use only even addresses.
The addressed memory area for the read/write operation cannot be outside the memory area of
the device:
u
Address for auto-read/auto-write + data length for auto-read/auto-write ≤
number of available bytes on the device
7.1.3.2 Parameter "Auto-Read/WriteData Length"
(Index 1904, subindex 0)
In the operating mode "READ DATA AUTO" / "WRITE DATA AUTO", the device automatically reads /
writes a specified number of data bytes.
The parameter defines the length of the memory area which is read / written from the device in bytes.
The data is processed as a data word (2 bytes).
u
Specify the data length as a multiple of 2 bytes.
